public class zy6 { public static void main(String[] args) { Scanner scanner=new Scanner(System.in); System.out.println("请输入一个小于五位的数"); int a= Integer.parseInt(scanner.next()); if (a/1000!=0){ System.out.println("4位"); }else if(a/100!=0){ System.out.println("3位"); }else if(a/10!=0){ System.out.println("2位"); }else { System.out.println("1位"); } } }